EP0410790A2 - Vorrichtung zum Entwickeln von lichtempfindlichen Materialien - Google Patents

Vorrichtung zum Entwickeln von lichtempfindlichen Materialien Download PDF

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Publication number
EP0410790A2
EP0410790A2 EP90308274A EP90308274A EP0410790A2 EP 0410790 A2 EP0410790 A2 EP 0410790A2 EP 90308274 A EP90308274 A EP 90308274A EP 90308274 A EP90308274 A EP 90308274A EP 0410790 A2 EP0410790 A2 EP 0410790A2
Authority
EP
European Patent Office
Prior art keywords
developer
sensitive material
silver halide
photographic light
halide photographic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP90308274A
Other languages
English (en)
French (fr)
Other versions
EP0410790A3 (en
Inventor
Kiyoshi C/O Konica Corporation Sato
Shinichi C/O Konica Corporation Ohtani
Mikio C/O Konica Corporation Kawasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Publication of EP0410790A2 publication Critical patent/EP0410790A2/de
Publication of EP0410790A3 publication Critical patent/EP0410790A3/en
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D5/00—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected
    • G03D5/003—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected film surface only souching the liquid
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D5/00—Liquid processing apparatus in which no immersion is effected; Washing apparatus in which no immersion is effected
    • G03D5/06—Applicator pads, rollers or strips
    • G03D5/067—Rollers

Definitions

  • the present invention relates to an apparatus for processing light-sensitive materials for instance exposed silver halide photographic light sensitive materials having therein a hydrophilic colloidal layer.
  • Japanese Patent Publication Open to Public Inspection Nos.144502/1975, 62004/1979, 115039/1980 and 12645/1981 disclose replenishing the developer using developer replenisher continuously or intermittently depending on the amount of processing.
  • an apparatus for processing a sheet of photographic light sensitive material characterized in that it comprises: conveying means including a pair of conveying belts disposed to face each other with a gap therebetween through which the sheet material is passed to be processed, feed means for feeding developing solution to process the sheet material as it passes through the gap, the gap being such that the developing solution is held between the pair of conveying belts.
  • the apparatus can be capable of supplying sufficient amount of developer and thereby performing stable processing without streaks, thus offering photometric characteristics such as predetermined sensitivity, gradation and so on.
  • the apparatus is suitable for processing silver halide photographic light-sensitive materials having at least hydrophilic colloidal layers on both sides of a transparent substrate, e.g. a high-speed X-ray film.
  • a transparent substrate e.g. a high-speed X-ray film.
  • the one disclosed in Japanese Patent O.P.I. Publication No.23154/1988 applied previously by an assignee of the invention is preferably used because it is excellent in sensitivity, fog and graininess and has less abrasion mark and less desensitization by pressure despite less amount of gelatin.
  • the photographic light-sensitive material can be supplied on its exposed surface with the developer, and it is possible, through such supply of the developer, to supply the necessary amount of the developer and to avoid the fatigue of the developer with the passage of time, resulting in a saving of developer.
  • This method of supplying developers may be in the style of either developer coating, developer shower or developer spray, and such supply is not limited to only once but it may be repeated several times.
  • Hydroquinone usable with the invention include hydroquinone, chlorohydroquinone, methylhydroquinone and others, but hydroquinone is used preferably.
  • the amount of the hydroquinone to be added is 1 g - 20 g per one litre of developer and 5 g - 15 g is more preferable.
  • the developer may also be supplemented when necessary, with a developing agent of a 3-pyrazolidone type, a hardening agent of a dialdehyde type, an anti-fogging agent selected from the group of indazole, benzimidazole, benztriazole and mercaptothiazole, a sequestering agent, a buffering agent, an alkaline agent, an auxiliary agent for dissolution, a pH adjusting agent, a development accelerator and a surface active agent.
  • a developing agent of a 3-pyrazolidone type e.g., a hardening agent of a dialdehyde type
  • an anti-fogging agent selected from the group of indazole, benzimidazole, benztriazole and mercaptothiazole
  • a sequestering agent e.g., a sequestering agent, a buffering agent, an alkaline agent, an auxiliary agent for dissolution, a pH adjusting agent,
  • the clearance between the light-­sensitive material and the belts of the apparatus is such that it can hold a developing solution on the exposed surface of the light-sensitive material by surface tension of the developing solution.
  • the developing solution may either be supplied directly to the photographic light-sensitive material or be supplied indirectly through the supply by means of the processing mechanism.
  • a pair of rollers 1 and 1 and a pair of rollers 2 and 2 each pair being arranged vertically are provided with a predetermined distance therebetween, and endless belts 3 and 4 are spread over rollers 1 and 1 and rollers 2 and 2 respectively.
  • transport path 6 for silver halide photographic light-sensitive material 5 Between these endless belts 3 and 4, there is provided transport path 6 for silver halide photographic light-sensitive material 5.
  • These rollers 1 and 1 and rollers 2 and 2 are driven by an unillustrated motor, and between endless belts 3 and 4, there is formed a processing mechanism which transports and processes a silver halide photographic light-sensitive material while holding it together with a developer so that the developer is held on the exposed surface of the silver halide photographic light-­sensitive material.
  • These endless belts 3 and 4 are made, for example, of the material such as synthetic rubber or synthetic resin and it is preferable that the material can easily offer the flatness of the belt and has the surface wettability, though there is no particular restriction. It may also be possible to use porous material because it is required to hold a developer.
  • the developer can be supplied directly to silver halide photographic light-sensitive material 5 or indirectly to it from endless belts 3 and 4 which are first supplied with the developer.
  • fresh developers are supplied to silver halide photographic light-sensitive material 5 and then are drained from the bottom of the processing mechanism to be a disposable developer.
  • a tray at the bottom of the processing mechanism so that the used developer may be collected into the tray and then the developer in the tray can be circulated to supply nozzles by means of a pump and piping connected to the tray.
  • the developer is not fatigued with development and the developer circulated is not fatigued on standing with the absorption of carbon dioxide either because of a few air-contacting area, thus allowing itself to be used again.
  • silver halide photographic light-sensitive material 5 is transported by endless belts 3 and 4 in the direction of an arrow A, and developers B are supplied from supply ports 9a and 10a of respective supply nozzles 9 and 10 while silver halide photographic light-sensitive material 5 is being transported.
  • Each developer B is held, owing to surface tension, in each of the clearance L between one side of silver halide photographic light-sensitive material 5 and endless belt 3 and the clearance L between the other side of silver halide photographic light-sensitive material 5 and endless belt 4.
  • silver halide photographic light-sensitive material having on the both sides of its support hydrophilic colloidal layers is conveyed and processed under the condition that the developing solution containing hydroquinones is held, owing to its surface tension, on the exposed surface of the silver halide photographic light-sensitive material in the apparatus for processing light-sensitive material of the invention. Therefore, the silver halide photographic light-sensitive material, without being dipped in the developer, can be developed stably without any streak problems with a small amount of developer, resulting in the achievement of photometric characteristics such as predetermined sensitivity and gradient.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Photographic Developing Apparatuses (AREA)
EP19900308274 1989-07-28 1990-07-27 Apparatus for processing light-sensitive materials Withdrawn EP0410790A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1195647A JPH0359661A (ja) 1989-07-28 1989-07-28 感光材料処理装置
JP195647/89 1989-07-28

Publications (2)

Publication Number Publication Date
EP0410790A2 true EP0410790A2 (de) 1991-01-30
EP0410790A3 EP0410790A3 (en) 1991-07-24

Family

ID=16344653

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900308274 Withdrawn EP0410790A3 (en) 1989-07-28 1990-07-27 Apparatus for processing light-sensitive materials

Country Status (4)

Country Link
US (1) US5012266A (de)
EP (1) EP0410790A3 (de)
JP (1) JPH0359661A (de)
KR (1) KR910003437A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992017819A1 (en) * 1991-03-26 1992-10-15 Kodak Limited Photographic processing apparatus
EP0863434A1 (de) * 1997-03-04 1998-09-09 Eastman Kodak Company Verfahren und Vorrichtung für die Redox-Entwicklung photographischer Materialien
EP0909984A2 (de) * 1997-10-09 1999-04-21 Eastman Kodak Company Verarbeitung von photographischem Material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE644862A (de) * 1963-03-06
DE116864C (de) *
FR1408399A (fr) * 1964-06-22 1965-08-13 Itek Corp Appareil et procédé de traitement de pellicules photographiques

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53697B2 (de) * 1972-10-31 1978-01-11 Logetronics Inc
IL56538A (en) * 1978-02-07 1981-05-20 Grant Sidney Apparatus for processing sheet material in a liquid bath

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE116864C (de) *
BE644862A (de) * 1963-03-06
FR1408399A (fr) * 1964-06-22 1965-08-13 Itek Corp Appareil et procédé de traitement de pellicules photographiques

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992017819A1 (en) * 1991-03-26 1992-10-15 Kodak Limited Photographic processing apparatus
US5418590A (en) * 1991-03-26 1995-05-23 Eastman Kodak Company Photographic processing apparatus
EP0863434A1 (de) * 1997-03-04 1998-09-09 Eastman Kodak Company Verfahren und Vorrichtung für die Redox-Entwicklung photographischer Materialien
EP0909984A2 (de) * 1997-10-09 1999-04-21 Eastman Kodak Company Verarbeitung von photographischem Material
EP0909984A3 (de) * 1997-10-09 1999-06-16 Eastman Kodak Company Verarbeitung von photographischem Material
US6092938A (en) * 1997-10-09 2000-07-25 Eastman Kodak Company Processing photographic material

Also Published As

Publication number Publication date
EP0410790A3 (en) 1991-07-24
KR910003437A (ko) 1991-02-27
US5012266A (en) 1991-04-30
JPH0359661A (ja) 1991-03-14

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